Sound warning device and method for electric vehicle
A technology of electric vehicles and warning devices, which is applied in the direction of sound signal devices, signal devices, vehicle parts, etc., can solve the problems of harsh warning sounds and weak recognition, and achieve the effect of ensuring accuracy
Active Publication Date: 2021-10-22
BYD CO LTD
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Problems solved by technology
[0007] The purpose of the embodiments of the present invention is to provide a sound warning device and method for electric vehicles, and to provide a brand new sound warning scheme for electric vehicles to at least solve the problem that the warning sounds of electric vehicles in the prior art are harsh or the sense of recognition is not strong and cannot The problem of getting pedestrians to accept
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[0042] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.
[0043] Those skilled in the art can understand that the words "comprising" and "comprising" used in the description of the present invention refer to the existence of the above-mentioned features, integers, steps, operations, elements and / or components, but do not exclude the existence or addition of one or Numerous other features, integers, steps, operations, elements, components and / or combinations thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element o...
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Embodiments of the present invention provide an electric vehicle sound warning device and method, which belong to the technical field of electric vehicle warning. The sound warning device for electric vehicles includes: a working parameter collection unit for collecting first vehicle working parameters related to the electric vehicle; a supplementary sound determination unit for determining the first supplementary sound based on the first vehicle working parameters combined with a supplementary sound database Component, wherein the supplementary sound mapping relationship between a plurality of vehicle operating parameters and a plurality of supplementary sound components is stored in the supplementary sound database; a warning sound output unit is used to use the first supplementary sound component to compensate the first motor sound to generate a target warning sound, and output the target warning sound to the outside of the electric vehicle. This provides a brand-new sound warning scheme for electric vehicles, which accurately compensates the motor sound in real time according to the vehicle operating parameters of the electric vehicle collected in real time, so as to output a target warning sound with sound quality that is easier for pedestrians to accept.
Description
technical field [0001] The invention relates to the technical field of electric vehicle warning, in particular to an electric vehicle sound warning device and method. Background technique [0002] With the country's strong support for new energy technologies, new energy vehicles have been vigorously promoted. Since pure electric vehicles are driven by motors and do not have engines, the sound of pure electric vehicles is relatively small or even not noticed by roadside pedestrians during driving, especially at low speeds. Therefore, the warning of new energy vehicles for passers-by The way it works is necessary. [0003] In the existing technology, there are mainly two sound warning methods for new energy vehicles: the first method is to add high-frequency narrow-band sounds similar to buzzers and horns outside the car; the second method is to record the sound of the engine. Sound, through the algorithm and single variable of speed to trigger playback of the recorded engin...
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IPC IPC(8): B60Q5/00H04R3/00
CPCB60Q5/008H04R3/00B60Q5/00
Inventor 赵永吉孙亚轩郝一妃严竹芳
Owner BYD CO LTD